Klein Tools 34055 Ferrule Crimping Tool – Square Crimp Pliers for 10-22 AWG with Built-In Ratchet

Premium ferrule crimping for reliable electrical connections

The Klein Tools 34055 ferrule crimping tool is engineered for electricians and DIYers who value consistency and quality. Its built-in ratchet ensures the tool completes square crimps with a satisfying click, while four precision dies create durable, 360-degree connections across a wide range of ferrule and wire terminal applications. The comfortable handles and responsive tuning dial invite careful, repeatable operation, making it a versatile addition to any toolkit.

Key capabilities

• VERSATILE CRIMPING CAPACITY: Designed for 10-22 AWG stranded wire terminals
• SECURE SQUARE CRIMPS: Four precision dies produce strong, 360-Degree crimps for durable connections
• BUILT-IN RATCHET: Automatically adjusts to ferrule size for consistent, complete crimps
• PRECISION TUNING: Adjustment dial provides fine control for accurate, customized results every time

Real-world use scenarios

• Electrical panel wiring, equipment connectors, and ferrule terminations in a workshop or job site
• Automotive wiring harnesses, control boxes, and power distribution systems
• Renovations or data/communication cabinet work where clean ferrule terminations matter
• Maintenance tasks at service calls or on-site repairs with portable tools

In addition to capability, Klein Tools brings a heritage of American-made quality. For more than 160 years, Klein Tools has built premium hand tools designed to meet the demands of professionals who rely on consistent performance. The family-owned company emphasizes quality materials, precise workmanship, and keeping manufacturing proximity to home, so you can count on reliable tools today and tomorrow.